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The presence of a "T-sign" at the inter-twin membrane-placental junction is indicative of monochorionic-diamniotic twins (that is, the junction between the inter-twin membrane and the external rim forms a right angle), whereas dichorionic twins present with a "lambda (λ) sign" (that is, the chorion forms a wedge-shaped protrusion into the ...
Twin anemia-polycythemia sequence (TAPS) is a chronic type of unbalanced fetal transfusion in monochorionic twins that results in polycythemia in the TAPS recipient and anemia in the TAPS donor due to tiny placental anastomoses. [1] Post-laser TAPS and spontaneous TAPS are the two forms of TAPS.
There is no sign of any membrane between the fetuses. A coronal plane is shown of the twin at left, and a sagittal plane of parts of the upper thorax and head is shown of the twin at right. Ultrasound is the only way to detect monoamniotic-monochorionic twins before birth. [4]
The other twin is usually normal in appearance. The normal twin, called the pump twin, drives blood through both fetuses. It is called "reversed arterial perfusion" because in the acardiac twin the blood flows in a reversed direction. [4] [5] TRAP sequence occurs in 1% of monochorionic twin pregnancies and 1 in 35,000 pregnancies overall. [6]
Twin-to-twin transfusion syndrome (TTTS), also known as feto-fetal transfusion syndrome (FFTS), twin oligohydramnios-polyhydramnios sequence (TOPS) and stuck twin syndrome, is a complication of monochorionic multiple pregnancies (the most common form of identical twin pregnancy) in which there is disproportionate blood supply between the fetuses.
Teen Mom 2 alum Kailyn Lowry is pregnant with twins — and she thinks she might be having two girls. “I went to a new nail place today and I’m just sitting there talking to the girl next to ...
Nia Sanchez and Daniel Booko's family is growing!. The Valley star is pregnant, expecting her fourth baby with Booko, Us Weekly was first to report. Sanchez, 34, and Booko, 41, are already parents ...
Monochorionic twins are twins that share the same placenta. This occurs in 0.3% of all pregnancies, [3] and in 75% of monozygotic (identical) twins, when the split takes place on or after the third day after fertilization. [4] The remaining 25% of monozygous twins become dichorionic diamniotic. [4]